#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

void swap(int* a, int* b)
{
	int ret = *a;
	*a = *b;
	*b= ret;

}
int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d", &a, &b);
	swap(&a,&b);
	printf("%d %d", a, b);
	return 0;
}